Waterproofing composition.



JULIUS WESSEL, OF NEW YORK, N. Y.

v WATERPROOFING COMPOSITION.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed lay 11,1906. Serial No. 259,996-

To all whom it may concern:

Be it known that I, JULIUS WESSEL, a citizen of the United States, residin at New York, in the county and State of ew York, have invented certain new and useful Improvements in Waterproofing Compositions, of which the following is a specification.

The object of my invention is to overcome difiiculties experienced in waterproofing fabrics owing to the improper density or the objectionab e odor or to the dyeing orcoloring efiects of the compositions in common use.

Paraffin is the basis of the compositions generally employed; but its density even when melted 18 too great for the proper impregnation of the fabric, and the reducing agents, as turpentine, benzin, &c., either impart an odor to or change the d e in the fabric treated. Further, some of t e agents employed make mixtures which are deleteriously afiected by changes in temperature, the volatile portions being driven off by heat. To avoid these results, I combine with the parafiin what is known on the market as li uid albolene, the same being a bleached by rocarbon which is odorless, of uniform density under all usual temperatures, not aifected'by such temperatures, and which when mixed with li uefied paraffin will combine therewith anal make a stable mixture. The liquid albolene consists chiefly of hydrocarbon of the marsh-gas series and is prepared from petroleum by distilling ofir' the more volatile portions and purifying that portion of the distillate having the proper consistence, the specific gravity being about 0.875 to 0.945 at 59 Fahrenheit. The albolene and paraffin are used in the pro ortion generally of twenty parts of liquid a bolene to seventy-five arts of paraflin, and with these are combine five parts of stearic acid, the proportions,'however, being varied accordin to the character of the fabric to be treate This composition has proved effective as one which will readily penetrate and coat the fabrics without discoloring even the most delicate tints and without imparting any odor whatever to the fabrics.

The stearic acid has proved to be an important factor in this composition, as without it the goods treated by the albolene and paraffin mixture have a easy unctuous 0 aracter, which makes tiiem' ob'ectionable to handle, while the addition of t e stearic acid results in overcoming this result, so that the waterproofed goods can hardly be detected by their feel from those that have not been treated.

I claim as my invention Acomposition of matter for the purpose specified, consisting of a mixture of ure white paraffin and a colorless distillate o petroleum of the specific gravity of 0.875 01' 0.945 and stearic acid.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JULIUS WESSEL.

Witnesses:

HARRY N. WEssEL, HERBERT LUscoMe. 

